Richetite
铅铀矿
🗣️ 情景例句
He has a big sales office in Los Angeles,
他在Los Angeles有一个大的销售办事处，
Oh, I'm very sorry, sir.
噢，我实在抱歉。
Why don't you come a little earlier? About a quarter to.OK?
45分左右来，好吗？